#include<bits/stdc++.h>
#define ll long long
#define ull unsigned long long
using namespace std;

const ll N = 1e6 + 10, INF = 0x3f3f3f3f;

ll n;
ll a[N];

void solve()
{
    cin >> n;
    for (ll i = 1;i <= n;i++) cin >> a[i];

    sort(a + 1, a + n + 1);
    ll ans = a[1] + a[2];
    for (ll i = 3;i <= n;i++) ans += 2 * a[i];
    cout << ans << '\n';
}

signed main()
{
    //ios::sync_with_stdio(0);
    //cin.tie(0);cout.tie(0);
#define ONLINE_JUDGE
#ifndef ONLINE_JUDGE
    std::istringstream in(R"()");
    std::cin.rdbuf(in.rdbuf());
#endif
    ll T = 1;
    cin >> T;
    for (ll i = 1;i <= T;i++) {
        solve();
    }
}